在透导管大动脉置换期间镇静期间高流量鼻腔氧化:高氧TAVR随机对照试验
Marc Giménez-Milà1,2, Antoni Manzano-Valls1,3, Omar Abdul-Jawad4
1Department of Anaesthesia and Intensive Care, Hospital Clinic of Barcelona, 08036 Barcelona, Spain.
与标准氧气疗法相比,高流量鼻氧化 (HFNO) 显著减少了跨导管大动脉置换 (TAVR) 期间的脱事件. 这改善了TAVR患者的氧化和功能.
科学领域:
- 心脏病学 心脏病学
- 肺部病理学 肺部病理学
- 麻醉学 麻醉学
背景情况:
- 关于高流量鼻氧化 (HFNO) 在过导管大动脉置换 (TAVR) 期间预防缺氧的疗效存在相互矛盾的数据.
- 在TAVR手术过程中,缺氧和脱事件是显著的担忧,可能会影响患者的治疗结果.
- 优化氧化策略对于改善TAVR后患者安全和康复至关重要.
研究的目的:
- 确定HFNO在TAVR期间预防脱的好处.
- 为了比较HFNO与标准氧气疗法的疗效,在程序期间保持足够的氧化.
- 评估HFNO对TAVR后动脉部分氧气压和功能的影响.
主要方法:
- 一个单一中心的随机对照试验,涉及132名接受 transfemoral TAVR 的成年患者.
- 患者被随机分配1:1接受HFNO (50L/分钟,FiO2 0.6) 或标准氧气疗法.
- 主要终点是脱事件的发生率 (SpO2>93%>10s);次要终点包括pO2水平和膜过率的变化.
主要成果:
- 对125名患者进行的每项方案分析显示,HFNO组的脱事件 (20%) 与标准护理组 (51%) 相比显著减少.
- 平均动脉部分氧气压 (pO2) 在HFNO组静止后45分钟显著更高 (24kPa对比16.7kPa).
- 与标准护理组相比,HFNO组的淋巴膜过率显著改善 (p=0.013).
结论:
- 在TAVR手术中,HFNO显示出较高的氧化概况,与标准氧气疗法相比.
- 在TAVR患者中,HFNO可能在预防脱和潜在地保持功能方面提供好处.
- 需要进行更大规模的研究来证实这些发现,并评估与TAVR镇静期间使用HFNO相关的长期临床结果.
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